Cable tray is the full name of rigid structure system, which has closely supported cable. The cable is composed of straight part of tray or ladder, bending part, supporting arm (arm bracket), hanger, etc. Today we will learn about the general materials of fireproof cable tray.
The shell of the fireproof cable tray is made of steel and equipped with double-layer fireproof cover and inorganic fireproof box. The average thickness of the insulation layer is set at 25 mm, the double-layer cover plate is used for ventilation and heat dissipation, and the fireproof coating is sprayed inside. When the fireproof cable tray is in contact with the fire, the coating will expand, block the heat dissipation hole, and protect the cables in the water tank. The fireproof performance of the inorganic fireproof box has been tested by the national fixed fire test center for 60 minutes.
The cable is not damaged, the bracket structure is good, and the inorganic fireproof box can be effectively fixed, which is a good choice for you. Fireproof cable tray has good fireproof performance and wide application. So what is the general material of this kind of fireproof cable? The cable tray manufacturer will analyze the secret for you.
The surface of fireproof cable tray has matte feeling. In addition to the automatic fire alarm system, it is generally used for various fire distribution lines, including fire control room, fire pump, fire elevator, smoke exhaust fan and automatic fire alarm system. Fire resistant cable can be used in production line without fire bridge. Fire bridges need more than one hour of fire resistance time in underground garages.
The part of the bridge that needs to be fireproof can be added to the tray or ladder with refractory or flame retardant plate and reticulated material to form a closed or semi closed structure, and the bridge surface shall be painted according to cecs24; 90 "application technology of fire retardant coating for steel structure" the overall fire resistance of fire retardant coating in this specification shall meet the relevant national standards and standards. Excellent function has won the trust of customers and gradually replaced the old bridge.
In addition, the cable tray has high mechanical strength, rigidity of metal bridge, toughness of glass steel bridge, good corrosion resistance, good aging resistance, beautiful appearance, convenient installation and long service life.